/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2010 huliqing, huliqing.cn@gmail.com
 *
 * This file is part of QFaces.
 * QFaces is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * QFaces is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with QFaces.  If not, see <http://www.gnu.org/licenses/>.
 *
 * 这个文件是QFaces的一部分。
 * 您可以单独使用或分发这个文件，但请不要移除这个头部声明信息.
 * QFaces是一个自由软件，您可以自由分发、修改其中的源代码或者重新发布它，
 * 新的任何修改后的重新发布版必须同样在遵守LGPL3或更后续的版本协议下发布.
 * 关于LGPL协议的细则请参考COPYING、COPYING.LESSER文件，
 * 您可以在QFaces的相关目录中获得LGPL协议的副本，
 * 如果没有找到，请连接到 http://www.gnu.org/licenses/ 查看并获取副本。
 *
 * - Author: Huliqing
 * - Contact: huliqing.cn@gmail.com
 * - License: GNU Lesser General Public License (LGPL)
 * - Blog and source code availability: http://www.huliqing.name/
 */


package name.huliqing.qfaces.model;

import java.util.ArrayList;
import java.util.List;
 
/**
 *
 * @author huliqing
 */
public class Node {

    private String id;      	// 用户指定的节点id
    private String value;   	// 节点值
    private String icon;		// 节点图标地址
    private String url;    		// URL连接地址
    private String urlTarget;	// URL 的打开方式,如"_blank","_self"
    private Node parent;    	// 父节点
    private List<Node> children;
    private boolean leaf;   	// 是否叶节点

    public Node() {}

    public Node(String id, String value) {
        this(id, value, false);
    }

    public Node(String id, String value, boolean leaf) {
        this.id = id;
        this.value = value;
        this.leaf = leaf;
    }

    /**
     * 获取节点的Id信息.
     * @return id
     */
    public String getId() {
        return id;
    }

    /**
     * 设置节点的id，可以为该节点设置一个id信息，以区别不同的节点
     * @param id
     */
    public void setId(String id) {
        this.id = id;
    }

    /**
     * 获取当前节点的父节点。
     * @return parent
     */
    public Node getParent() {
        return parent;
    }

    /**
     * 设置当前节点的父节点。
     * @param parent
     */
    public void setParent(Node parent) {
        this.parent = parent;
    }

    
    public String getValue() {
		return value;
	}

	public void setValue(String value) {
		this.value = value;
	}

	public String getIcon() {
		return icon;
	}

	public void setIcon(String icon) {
		this.icon = icon;
	}

	public String getUrl() {
		return url;
	}

	public void setUrl(String url) {
		this.url = url;
	}

	public String getUrlTarget() {
		return urlTarget;
	}

	public void setUrlTarget(String urlTarget) {
		this.urlTarget = urlTarget;
	}
	

	public boolean isLeaf() {
		return leaf;
	}

	public void setLeaf(boolean leaf) {
		this.leaf = leaf;
	}
	
	public List<Node> getChildren() {
		if (children == null) {
			children = new ArrayList<Node>();
		}
		return children;
	}

	public void setChildren(List<Node> children) {
		this.children = children;
	}
	
	public void addChild(Node child) {
		getChildren().add(child);
	}

	/**
     * 获取当前节点在页面中所在的级别，从根节点root（0 level）开始.
     * @return level
     */
    public Integer getLevel() {
    	return (this.parent != null ? (this.parent.getLevel() + 1) : 0);
    }
}
